by: Joe Palca

A story on the Keck Observatory adaptive optics system was featured on NPR.

It used to be that if astronomers wanted to get rid of the blurring effects of the atmosphere, they had to put their telescopes in space. But a technology called adaptive optics has changed all that.

Adaptive optics systems use computers to analyze the light coming from a star, and then compensate for changes wrought by the atmosphere, using mirrors that can change their shapes up to 1,000 times per second. The result: To anyone on Earth peering through the telescope, the star looks like the single point of light it really is.

Read and listen to the full article here.



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